Is that allowed?
I feel like this is one of those issues that leaves reason, science, and measured responses out.
But I would like to talk about it.
"...the alveoli take proteins, sugars, and fat from your blood supply and make breast milk."
This is interesting, and raises more questions for me. From when my baby-mamma was checking her blood sugar multiple times a day (watching for gestational diabetes) we know that there is a significant lag between something going in your mouth and that same stuff hitting your blood. In general, that lag seems to run ~ 1.5 hours to 2 hours.
And yet, the baby advice literature suggests that if Mommy does want to drink a little alcohol, it's best to do so just after a breast feeding session. How does this make sense when the gap between feedings is supposed to be 2 - 3 hours (at our current stage of development)? It would seem that the advice has Mommy going to feed baby at about the same time the booze would actually be getting into the blood supply.
This is the kind of stuff that makes me frustrated with medicine and education about baby-raising.